Datsun BLUEBlRD P 410 Series Service Manual page 194

If there
IS no
large
dIffer
nce
from
the
specIficatIon It IS correct
No
matter
how the
battery
IS over
charged
or
dIscharged If the
chargIng
current
IS
small
first
make
sure
eIther the
dynamo
or
the
relay
IS In
dIsorder
See the
chargIng
current by InsertIng
the
ammeter
between A termInal of
relay
and the
battery
DIsconnect
WIre
paSSIng from the
dynamo
F tenmnal to the
relay
F termInal
at
the
relay
F termInal and make the removed lead
WIre
short
CIrCUIts at
the
relay
A
terrmnal
when
If the
chargIng current hIghly
Increases
the
relay
IS In
dIsorder
B Short CIrCUItS
on
DIOde SIde
It
can
be
Judged as
the
pIlot lamp
does
not
flare
even
If the
key
SWItch
IS
turned
on
Actually
a
trouble
such
as dIode open
IS very
rare and short CIrCUIts at the
polar
lIne
are
also
rare
OrdInanly
there
are
many
cases
of SIde short
CIr
CUIts
C
InspectIon
of D 1 ode WIth Tester
a
Hg 3 2
f
Fig 3
3
Check between
the
terrmnals A N
as
shown
In
FIg
3 2 Set the dIal
of
tester
for
conductIVIty
and
put
the
tester
needles
at both
terrmnals
alternately
When
one
shows low
reSIstance
and
the other shows pretty
hIgh
reSIst
ance
the 3 dIodes
In
the
dIode
set
are
all
rIght
Check between the
terrmnals A E
same as
above
When the
same
result
IS
obtaIned
3 dIodes
are
also all
nght
However
when there
IS no
d1sorder
found
In
thIS SImple test
and
the
dynamo
output
IS
somewhat lower
than the
standard
1
2 dIod s are
often
In
opemng
when
one
by
one
checkIng
Will be necessary
T
b Separate InspectIon
Check
reSIstance
wIth the
tester
between the dIode base
commonly
used
for 2 dIodes and lead
WIre on
the
rear cover
2
tImes changIng
the
poles
When
one
SIde shows low
reSIstance
and the other shows
hIgh
reSIstance
181
1
o